c - 从二维字符数组打印字符串

Question

我环顾四周并尝试了不同的语法，但我似乎无法让它工作。我知道这是基础知识，但不应该花太长时间才能弄清楚。

我有字符数组...

char *roster[2][14] = {
      {"13", "10", "24", "25", "15", "1", "00", "4", "11", "23", "22", "32", "3", "35"},
      {"Isaiah Briscoe", "Jonny David", "EJ Floreal", "Dominique Hawkins", "Isaac Humphries", "Skal Labissiere", "Marcus Lee", "Charles Matthews", "Mychal Mulder", "Jamal Murray", "Alex Poythress", "Dillon Pulliam", "Tyler Ulis", "Derrick Willis"}
    };

然后我从该数组生成一个随机元素...

random = rand() % 14;
printf("What is %s 's number?", roster[2][random]);

然后我尝试打印它，但失败了......

printf("What is %s 's number?", roster[2][random]);

输出

What is (null) 's number?

并且 lldb 显示 printf 语句跳转到...

libsystem_c.dylib`strlen:
->  0x7fff9a596d32 <+18>: pcmpeqb (%rdi), %xmm0
    0x7fff9a596d36 <+22>: pmovmskb %xmm0, %esi
    0x7fff9a596d3a <+26>: andq   $0xf, %rcx
    0x7fff9a596d3e <+30>: orq    $-0x1, %rax

Answer 1

数组索引从0开始。

对于char *roster[2][14];，可能的索引为

roster[0][random];
roster[1][random];